#include<bits/stdc++.h>
using namespace std;
int time_max;
int time_min;
int x,y;//
int site[10001];
int p;
bool judge(){
	
	
	return true;
}
int mintime(){
	int min_distance;
	for(int i=0;i<=1;i++){
		min_distance = pp[i]?
	}
	
	return 0;
}
int maxtime(){ 
	
	
	return 0;
}
int main(){
	cin>>x>>y;
	int pp[y] ={0};
	for(int i = 0; i < y  ;i++  ){
		cin >> p;
		site[p] = 1; 
		pp[i]=p;//1,3
	}
	return 0;
}

//https://www.luogu.com.cn/problem/P1007
